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Analog Devices Inc. AD7988-5CCPZ-RL7
- Part No.:
- AD7988-5CCPZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-VFDFN Exposed Pad, CSP
- Datasheet:
-
AD7988-5CCPZ-RL7.pdf
- Description:
- IC ADC 16BIT 10LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:679
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Product details
Overview
AD7988-5CCPZ-RL7 from Analog Devices is a 16-bit, pseudo-differential successive approximation register (SAR) analog-to-digital converter with 500 kSPS throughput, 2.5 V single-supply operation, and SPI-/QSPI™-/MICROWIRE™-/DSP-compatible serial interface. It delivers ±1.25 LSB max INL, 91.5 dB SNR at 10 kHz, and −114 dB THD, targeting precision data acquisition in space-constrained industrial sensors and medical instrumentation.
For engineers reviewing the AD7988-5CCPZ-RL7 datasheet, AD7988-5CCPZ-RL7 pinout, AD7988-5CCPZ-RL7 application, or AD7988-5CCPZ-RL7 equivalent, this page provides verified technical context, package mapping to 10-lead 3 mm × 3 mm LFCSP, real-world AC/DC accuracy specs, daisy-chain interface behavior, and validated alternative options for high-resolution, low-power sampling systems.
Technical Context
The AD7988-5CCPZ-RL7 implements a zero-latency SAR architecture with external reference input (2.4 V–5.1 V), enabling precise full-scale scaling independent of 2.5 V VDD. Its pseudo-differential input accepts 0 V to VREF across IN+ and IN−, with 60 dB CMRR at 1 kHz and 10 MHz −3 dB input bandwidth.
Digital interface flexibility is achieved via dual-mode CNV/SDI-controlled selection between CS mode (3- or 4-wire) and chain mode (daisy-chain capable), supporting 1.8 V–5 V logic levels through dedicated VIO supply. Aperture delay is 2.0 ns, and transient response to full-scale step is 400 ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - guarantees monotonicity and unambiguous digital representation of analog inputs. |
| Throughput Rate | 500 kSPS - supports real-time capture of signals up to ~200 kHz Nyquist bandwidth without undersampling. |
| INL (Max) | ±1.25 LSB at VREF = 5 V - limits absolute measurement error to ±95 µV over full scale, critical for calibration-sensitive systems. |
| SNR @ 10 kHz | 91.5 dB at VREF = 5 V - enables detection of signals 36,000× smaller than full scale in noise-limited applications. |
| Total Power @ 500 kSPS | 3.5 mW - achieves 7.0 nJ/conversion energy efficiency, suitable for battery-powered or thermally constrained designs. |
| Analog Input Range | 0 V to VREF (2.4–5.1 V) pseudo-differential - allows direct interfacing with instrumentation amplifiers and isolated signal chains. |
| Digital Interface | SPI-/QSPI™-/MICROWIRE™-/DSP-compatible with daisy-chain capability - reduces host GPIO count and simplifies multi-channel synchronization. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, industrial motor control, and downhole sensing environments. |
Pinout & Package
AD7988-5CCPZ-RL7 is housed in a 10-lead, 3 mm × 3 mm LFCSP (CP-10-9) package with exposed pad connected to GND for thermal and EMI performance. Thermal resistance θJC = 15°C/W enables stable operation at full throughput in compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 REF | Analog reference input | Accepts 2.4–5.1 V external reference; requires local 10 µF decoupling to GND for stability and noise rejection. |
| 2 VDD | Analog power supply | 2.375–2.625 V single supply; powers core ADC and internal logic; separate from digital I/O rail. |
| 3 IN+ | Pseudo-differential analog input | Input voltage measured relative to IN−; range = 0 V to VREF; high-impedance during conversion. |
| 4 IN− | Analog ground sense | Reference node for IN+; connects to system analog ground or remote sensor ground to reject common-mode noise. |
| 5 GND | Power ground | Common return for VDD, REF, and exposed pad; must be low-impedance and separated from digital ground. |
| 6 CNV | Convert trigger / interface mode select | Rising edge initiates sampling; logic level at CNV rising edge selects CS or chain mode for serial interface. |
| 7 SDO | Serial data output | 16-bit straight-binary result synchronized to SCK; tri-state controlled by CNV (CS mode) or always active (chain mode). |
| 8 SCK | Serial clock input | Drives data shift-out timing; minimum period 11.5 ns (VIO > 4.5 V); supports up to ~87 MHz SCK frequency. |
| 9 SDI | Serial data input / mode control | Low at CNV rising edge enables chain mode; high enables CS mode; also used for daisy-chain data input in chain mode. |
| 10 VIO | Digital I/O power supply | 1.71–5.5 V logic interface supply; isolates ADC digital interface from VDD, enabling mixed-voltage system integration. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-latency architecture | Conversion result available immediately after tCONV (1.2–1.6 µs), eliminating pipeline delay for real-time closed-loop control. |
| External reference flexibility | VREF adjustable from 2.4 V to 5.1 V, enabling optimized dynamic range and SNR trade-offs without changing VDD. |
| Dual-interface mode selection | Hardware-selectable CS mode (3-/4-wire) or chain mode (daisy-chain) via CNV/SDI logic levels - no configuration registers required. |
| Ultra-low power at partial throughput | 70 µW total power at 10 kSPS - extends battery life in portable diagnostic equipment and wireless sensor nodes. |
| High-temperature operation | Full specification guaranteed from −40°C to +125°C - eliminates derating concerns in engine control units and industrial PLC modules. |
| Robust digital interface | VIO rail supports 1.8 V/2.5 V/3 V/5 V logic; VIH/VIL thresholds scale with VIO, ensuring reliable communication across mixed-voltage SoCs. |
Applications
| Automated Test Equipment | Data Acquisition Systems |
|---|---|
Use Scenario: High-speed parametric testing of semiconductor devices requiring sub-LSB repeatability and minimal thermal drift. IC Role / Device Role / Timing Role: Precision sampling front-end capturing transient waveforms with 500 kSPS sustained rate and 400 ns step response. Use Value: ±1.25 LSB INL and 91.5 dB SNR ensure pass/fail decisions meet ATE class metrology requirements without post-processing correction. |
Use Scenario: Modular rack-mounted DAQ with multi-channel synchronization and isolated analog inputs. IC Role / Device Role / Timing Role: Channelized SAR ADC in daisy-chain configuration, reducing FPGA I/O count while maintaining per-channel timestamp alignment. Use Value: Chain mode enables 16-bit data from up to 8 AD7988-5CCPZ-RL7 devices on one 3-wire bus, cutting interconnect complexity by 75% vs. parallel interfaces. |
| Medical Instruments | Machine Automation |
Use Scenario: Portable patient monitors measuring ECG, respiration, and blood oxygen saturation with low-power, high-SNR signal conditioning. IC Role / Device Role / Timing Role: Low-noise analog front-end digitizer operating from 2.5 V supply with 70 µW standby power at 10 kSPS. Use Value: 92 dB dynamic range at 5 V reference supports >16-bit effective resolution for detecting microvolt-level biopotentials amid EM interference. |
Use Scenario: Servo drive current sensing and position feedback in robotic joints where thermal management limits power dissipation. IC Role / Device Role / Timing Role: Isolated current shunt digitizer interfaced to isolated SPI controller, delivering 500 kSPS samples with <1 µs latency. Use Value: 2.5 V single supply and 3.5 mW total power enable integration into compact motor control PCBs without forced air cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7988-1CCPZ-RL7 | 100 kSPS throughput, 700 µW total power at 100 kSPS, identical pinout and interface. | Lower sampling rate suits slower sensors (e.g., temperature, pressure) where power budget is tighter than speed requirement. | Select when system bandwidth ≤50 kHz and average power must stay below 1 mW; retains same PCB layout and firmware interface. |
| AD7685BRMZ-REEL | 16-bit, 250 kSPS, 2.5 V supply, SPI interface, but no daisy-chain mode and higher 2.5 mW power at 250 kSPS. | Lacks chain mode and has fixed 2.5 V logic interface; suited for simpler point-to-point SPI connections without multi-ADC synchronization needs. | Choose when daisy-chaining is unnecessary and legacy compatibility with AD768x family is required; verify REF decoupling meets 250 µA load spec. |
Compared with AD7988-1CCPZ-RL7 and AD7685BRMZ-REEL, the AD7988-5CCPZ-RL7 uniquely balances 500 kSPS speed, 3.5 mW power, daisy-chain capability, and −40°C to +125°C operation-making it optimal for thermally dense, multi-channel, high-fidelity industrial and medical sampling systems.
Availability
AD7988-5CCPZ-RL7 is available at Aetrix Electronics and suitable for automated test equipment, medical instruments, and machine automation requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.
Supply support for AD7988-5CCPZ-RL7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design centers and manufacturing facilities worldwide.
The AD7988-5CCPZ-RL7 belongs to Analog Devices' precision SAR ADC product line, engineered for high-resolution, low-power, and fast-throughput data acquisition in harsh industrial, medical, and test environments.
FAQ
What is the maximum recommended reference voltage for AD7988-5CCPZ-RL7?
The AD7988-5CCPZ-RL7 supports an external reference voltage (REF) from 2.4 V to 5.1 V. Operation at 5.0 V is typical and delivers optimal SNR (91.5 dB) and dynamic range (92 dB). Exceeding 5.1 V violates Absolute Maximum Ratings and may cause permanent damage to the REF pin.
Does AD7988-5CCPZ-RL7 support daisy-chaining with other ADCs?
Yes, AD7988-5CCPZ-RL7 supports daisy-chain mode via its SDI and CNV pins. When SDI is low at the CNV rising edge, the device enters chain mode: conversion results from multiple AD7988-5CCPZ-RL7 units are concatenated on a single SDO line with 16-cycle inter-device delay, requiring no additional chip select lines.
What is the power consumption of AD7988-5CCPZ-RL7 at 10 kSPS?
At 10 kSPS, the AD7988-5CCPZ-RL7 consumes 70 µW total power (VDD + VIO + REF supplies combined), as specified in Table 3 of the Rev. H datasheet. This ultra-low standby power enables use in energy-harvesting or battery-operated portable instrumentation.
Can AD7988-5CCPZ-RL7 operate with a 1.8 V digital interface supply?
Yes, AD7988-5CCPZ-RL7 supports VIO from 1.71 V to 5.5 V. At 1.8 V, digital timing parameters adjust accordingly: minimum SCK period increases to 22 ns, and VIH/VIL thresholds scale to 0.9 × VIO and 0.1 × VIO respectively, ensuring robust interfacing with 1.8 V FPGAs and microcontrollers.
Is the AD7988-5CCPZ-RL7 pin-compatible with AD7988-1CCPZ-RL7?
Yes, AD7988-5CCPZ-RL7 and AD7988-1CCPZ-RL7 share identical 10-lead LFCSP (CP-10-9) and MSOP (RM-10) packages, pin assignments, and interface protocols. They differ only in maximum throughput (500 kSPS vs. 100 kSPS) and corresponding power consumption - enabling drop-in speed upgrades on existing PCBs.
AD7988-5CCPZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- PulSAR®
- Package/Case:
- 10-VFDFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 500k
- Number of Inputs:
- 1
- Input Type:
- Pseudo-Differential
- Data Interface:
- SPI, DSP
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.375V ~ 2.625V
- Voltage - Supply, Digital:
- 2.375V ~ 2.625V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 10-LFCSP-WD (3x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7988-5CCPZ-RL7 FAQ
1.How can I place an order for AD7988-5CCPZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7988-5CCPZ-RL7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD7988-5CCPZ-RL7 reliable?
The price and inventory of AD7988-5CCPZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7988-5CCPZ-RL7 is usually 5 days.
3.What payment methods are accepted for AD7988-5CCPZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7988-5CCPZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7988-5CCPZ-RL7?
AD7988-5CCPZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7988-5CCPZ-RL7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD7988-5CCPZ-RL7?
For technical support, including AD7988-5CCPZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7988-5CCPZ-RL7 requirements.
6.How does Aetrix verify that AD7988-5CCPZ-RL7 is sourced from the original manufacturer or authorized distributors?
All AD7988-5CCPZ-RL7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD7988-5CCPZ-RL7 meets industry standards.
7.What is the process for return or replacement of AD7988-5CCPZ-RL7?
All AD7988-5CCPZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7988-5CCPZ-RL7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD7988-5CCPZ-RL7 part is unused and in its original packaging.
Return procedure for AD7988-5CCPZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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